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Bearing 4T-2687/2631 (NTN)
Tapered roller bearings 4T-2687/2631
Bearing number : 4T-2687/2631
Size (mm) : 25.4x66.421x23.812
Brand : NTN
Bore Diameter (mm) : 25,4
Outer Diameter (mm) : 66,421
Width (mm) : 23,812
Bearing dimensions and specification in NTN catalogue:
d - 25,4 mm
D - 66,421 mm
T - 23,812 mm
B - 25,433 mm
C - 19,05 mm
ra1 max. - 1,3 mm
a - 9,3 mm
Da - 58 mm
db - 31,5 mm
ra max. - 1,3 mm
da - 33,5 mm
Db - 60 mm
Weight - 0,442 Kg
Basic dynamic load rating (C) - 64,5 kN
Basic static load rating (C0) - 72,5 kN
(Grease) Lubrication Speed - 6 200 r/min
(Oil) Lubrication Speed - 8 200 r/min
Calculation factor (e) - 0,25
Calculation factor (Y0) - 1,3
Calculation factor (Y2) - 2,36
Tags : NTN , 25.4x66.421x23.812
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